/Engine/Source/Runtime/Slate/Public/Widgets/Notifications/SNotificationList.h
FNotificationButtonInfo ( const [FText](API\Runtime\Core\Internationalization\FText) & InText, const [FText](API\Runtime\Core\Internationalization\FText) & InToolTip, FSimpleDelegate InCallback, [SNotificationItem::ECompletionState](API\Runtime\Slate\Widgets\Notifications\SNotificationItem\ECompletionState) VisibleInState )